The air vacuum circuit breakers are of the triple pole indoor type for rated voltage 24 KV. They operate on the vacuum arc quenching principle and outstandingly cost effective. The vacuum breaker consists of the mechanism 2 housing complete with stored energy mechanism and control elements. The three poles with vacuum interrupters, cast resin insulators and bracing struts, and the operating rods connecting the mechanism with the breaker poles.
The scope of this specification covers the supply and installation of lighting fixtures applicable to internal and external places of a building. Work includes, the collection, handling, installation and commissioning of the fluorescent, incandescent, chandelier, mercury vapour lamp light fixtures.
The contractor shall furnish and install a telephone system as specified herein and as shown in the drawings. The PABX shall be of the latest design in architecture and digital technology using stored program control (SPC) and PCM format. Cross bar or any other electromechanical switching system will not be considered. The processor memory shall be restored automatically upon restoration of power following a total power failure. The system must be readily available and have been installed and commissioned in the state in a similar configuration to that requested by this specification.
This method of statement specifies the detailed requirements and procedures for the installation of Power and Lighting System Wiring. Installation: No wiring be carried out until the appropriate tests required or in the electrical testing section have been done and the consultant has given his clearance for wiring to commence. A loop in form of wiring shall be used as far as practicable or unless otherwise indicated. Joints in conductors shall be made using insulated terminal blocks complying with requirements of this specification.
Method Statement For Installation Of Galvanized Conduits that has to be installed on the Exposed Surface of a building is described here. This method of statement specify the detailed requirements and procedures for the installation of Galvanized Conduits for the exposed surface installation requirement for MEP services of the above building.
This method statement is written for the purpose of establishing method and procedures for the Installation of DB, SMDB and MDB Panelboards.
Electrical Engineers seldom show interest acquiring knowledge and experience on cable tray installations. Most of them think it's a concern of mechanical fabricators to be taken care of it. A proper and professional way of cable tray installation requires good involvement and coordination of people from both electrical and mechanical disciplines. If cable tray system has been installed appropriately in a project, following advantages can be counted:
The DC power supply shall consist of batteries and batteries charger.
Batteries of DC Power Supply - Technical Specifications
The batteries shall be nickel cadmium type with pocket plates type range TP, T.
The contractor shall supply, install, test and commission the medium voltage switch gears (13.8 KV) as shown and described on the drawings, specification and bill of quantities.
A. Main earthing bar or loop is to be conveniently located in electrical/mechanical plant rooms, and connected by earthing conductors to exposed conductive parts of motor control centre at its earthing bar, and to motors, switches and other electrical equipment etc. at their earthing terminals, using 20 x 2 mm insulated copper strips or 35 mm2 insulated copper conductor (minimum size) or as required to carry maximum earth fault current for 1 second with final conductor temperature not exceeding 200 deg. C (392 deg. F).